Requisitos procedimentales como parámetros para el control de normas de rango constitucional

This contribution analyzes the adjudication of constitutional norms on procedural grounds through the lens of comparative law. It shows how and when Supreme and Constitutional Courts have used procedural criteria to decide upon constitutional amendments, devoting special attention to those judgments in which the corresponding parliaments have been considered not to be entitled to pass such amendments. The presentation will focus on concrete cases in order to build a more comprehensive reconstruction of the issue.